Air distribution nozzle



y 9 F. w. HANKINS 1,917,299

AIR DISTRIBUTION NOZZLE Filed Oct. 24, 1931 2 Sheets-Sheet 1 FIGi-I WITNESSES: INVENTOR:

ATTORNEYS.

ly 1933. I F. w. HANKINS 1,911,299

AIR D ISTRIBUTION NOZZLE Filed Oct. 24, 1931 I 2 Sheets-Sheet 2 HQ H.

WITNESSES: I N VEN TOR:

012ml 4 H 5 by this invention.

Patented'd lly n, 1933 UNITED sTA'rE-s PATENT o -"rice ammo: w. mums, or rmanmnu, rmmmvun arnnrsrmurrou rrozzm Application fled October 84, 1931. Serial No. 570,798.

parlor cars, passenger coaches or the like,

and then discharging the air in the desired direction. The invention is especially adapted for use in connection with a portable air cooling and conditioning unit positioned on a station platform alongside the railway car to be cooled. An example of such an apparatus is shown in the pendin application for U. S. Letters Patent, Serial 0. 527,404, filed April 3, 1931, of William J. Madden.

The air distribution nozzle to which this invention is "directed constitutes, in its preferred form, the connecting means by which the flexible discharge duct of such a cooling and conditioning unit is attached to a railway car window frame and by which the current of air is conducted through the window to the interior of the car and there distributed.

The object of the invention is to provide an air distribution nozzle of this nature which is characterized by simplicity of construction, capacity for adjustment to eifect discharge of air in the proper direction, and adaptability to a standard window frame of a railway car so that the device may be readily ap lied and removed.

Sther objects and advantages characterizing my invention will become more fully apparent from the description hereinafter of one embodiment ,or example thereof, the deing drawings. Of the drawings:

' atively connected thereto;

scription having reference to the accompanyplan view of the'interior of a sleeping car, s owing also in outline an-air cooling and conditioning unit positioned alongside the car and oper- Fig. I represents a fragmentar Fig. II shows a side elevation of the same. Fig. III shows a detailed plan view of a form of air distribution nozzle contemplated of the same -"Infthe drawings, there is illustrated an ordinary sleeping car A having windows} flexible duct 5 which may be made of canvas I and undergoesa *tangular to cyhndrlcal section, ultimately .nated at 16. At its inner en ap lication re erred to abpve;

. he flexible duct 5 in t e present example is shown connected to a-wmdow 1 at the extreme end of the berthing space of the car 0 A. It will be apparent, however, that it may be desirable to lead the duct 5 to other points of the car, aid that the connection may be made at any window therein.

The air distributi n nozzle by which theflexible duct 5 is atta hed to the window and its current of air is conducted into the interior of the car is comprehensively desig .nated at 6. As shown in Figs. III, IV and V, this nozzle comprises a funnel 7 and an elbow 8 connected to said funnel by a swivel joint. The funnel 7 is of rectan lar crosssection at the portion 9 where it joins the window frame, and it is there surrounded by an extensible frame 10 which occupies the full space between the. opposite side members 11 of the. window frame and which is held in place between the sill 12 and sash 13. The funnel 7 forms the terminus of the or other suitable material with its end 14 secured by rivets 15 or the like between the funnel 7 and its surrounding frame 10. The ortion 9 of rectangular section of the funnel project inward into the interior of the car adual transition from recmer 'n with the c lindrical ortion desi g1 g y d the funnel 'l is provided with an annular flange 17.

The elbow piece 8 isprovided with a number of clips 18, 18a which engage'the annular flange --17 and together form a joint about which the elbow piece may swivel. The clips 18, 18a are preferably formed with with a snug fit. In an obvious manner the elbow piece 8 may be rotated to cause its discharge end 19 to be directed towards one end of the car or the other. In order to limit the movement of the elbow piece, so that when rotated it willcome to rest at the desired point, stops 20 are provided at the top and bottom of the funnel 7, and one of the clips, 18a, is formed with a projecting lug 21 for engagement with the stops 20. The stops 20 being located at substantially opposite points, rotation of the elbow piece 8 is imited to an angle of 180. r

The extensible frame 10 which surrounds the rectangular portion of the funnel 7 comprises two interfitting members 22 and 23, sliding one within the other so that the frame 10 may be adjusted to occupy the full space between the side members 11 of the window frame. The member 22 of the frame 10 is provided at its edges withturned-over margins 24. The member 23 is provided with arms 25 which are engaged within the turned-over margins 24 of the member 22. Accordingly, the frame 10 may be adjusted to varying widths by moving the member 23 in and out. This movement, however, does not affect there being a tight seal preventing admission of air around the funnel 7 The side edges of the'members 22 and 23 are accommodated within grooves 26 in the side members 11 of the window frame.

The method of applying the air distribution nozzle 6 to a window of a railway car will be apparent from the above description and need, therefore, be only briefly described. When the air cooling and conditioning .unit 2 is brought alongside the car to be cooled, the air distribution nozzle 6, which is normally attached to the discharge duct 5, is placed in one of the windows by raising the sash 13- and-inserting the nozzle from the outside between the opposite side members 11 of the window frame. With the nozzle 6 resting on the sill 12, the stationary member 22 of the funnel frame 10 engaged in the groove 26 at one side of the window, the movable member 23 is slid lengthwise until it engages within the groove 26 at the other side of the window, whereupon the frame 10 occupies the full width of the window frame. The sash 13 is then lowered to engage the top of the casing 10, the sash being self-locking in the manner customary to railway car windows. When the nozzle 6 has been thus applied to the car window frame, its elbow 8 is rotated to effect the discharge of air in the desired direction lengthwise of the car. The removal of the nozzle is accomplished by raisin the window sash, drawing together the mem ers 22 and 23 of the funnel frame 10, and then withdrawing the entire unit to the outside of the car.

While I have shown and described a par-- ticular form which the air distribution nozzle of myinvention may take, it will be apthe car connected to and swivelling on said funnel.

2. An air distinction nozzle for railway cars comprising a funnel forming a part of and the terminus of a duct, said funnel having a rectangular frame including interfitting members, one of which is adapted to slide within the other whereby the frame may be extended to occupy the full space between the side members of .a railway car window and look within said window, and an elbow connected to and swivelling on said funnel.

3. In combinationwith a flexible duct an air distribution nozzle for railway cars comprising a funnel having a portion of rectangular section with slidably extensible means thereon adapted to fit and look within a railway car window, said portion merging with a portion of cylindrical section, and an elbow'for discharging air into the interior of the car connectedto and swivelling on said cylindrical portion of the funnel.

4. An air distribution nozzle for railway cars comprising a funnel forming a part adapted to fit and look within a railway car I window and to occupy the full space between theside members thereof, a portion of rec tangular section within said frame, said portion merging with a portionof cylindrical section, and an elbow for discharging air into the interior of the car, said elbow being connected to and swivelling on said cylindrical portion of the funnel.

In testimony whereof, I have hereunto signed my name at Philadelphia, Pennsyl- Vania, this 22nd day of October, 1931.

FREDERICK W. HANKINS. 

